Full list of all 43 DAVE THE DIVER achievements. It takes around 15-20 hours to unlock all of the achievements in the base game on Windows.
The base game contains 15 achievements, and there is 1 DLC pack containing 28 achievements.
Bought First Interior Item.
Entered the Deep Sea for the first time.
Completed the Dolphin's request.
First time bringing Dave back from the brink of death.
Picked up 100 items.
Caught first shark.
Researched 5 new dishes
Reached Bronze Level in Cooksta.
Fixed the Sushi Restaurant.
Made first equipment upgrade.
Enhanced 5 dishes.
Completed the gun tutorial.
Discovered the under-sea village.
Caught 10 fish with a Sniper Rifle.
Caught 20 fish with melee weapons.
Caught 300 fish.
Discovered the Glacier Passage.
Got to know Momo a little better.
Entered the Glacier Passage for the first time.
Watched the ending credits.
Mima's restaurant opened.
Gumo's seeweed farm opened.
Duwa's workshop opened.
Collected all the blueprints.
Enhanced gun 3 times.
Captured all of the Sea People murals.
Fed cat 20 times.
Sold 200 items at workshop.
Installed sprinklers in the garden.
Raised 5 GYAO!s.
Took 10 photos at Photo Spots.
Captured 5 FishMon.
Fice field expanded to maximum.
Vegetable farm expanded to maximum.
Achieved Platinum rank in Cooksta.
Trained employees to level 20.
Achieved Diamond rank in Cooksta.
Researched 30 new dishes.
Bancho Sushi formed a branch restaurant.